67406432 has 12 divisors (see below), whose sum is σ = 132706476. Its totient is φ = 33703200.

The previous prime is 67406389. The next prime is 67406441. The reversal of 67406432 is 23460476.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2106451 = 67406432 / (6 + 7 + 4 + 0 + 6 + 4 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053194 + ... + 1053257.

It is an arithmetic number, because the mean of its divisors is an integer number (11058873).

Almost surely, 2^67406432 is an apocalyptic number.

It is an amenable number.

67406432 is a deficient number, since it is larger than the sum of its proper divisors (65300044).

67406432 is a wasteful number, since it uses less digits than its factorization.

67406432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106461 (or 2106453 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 67406432 is about 8210.1420206961. The cubic root of 67406432 is about 406.9744202120.

The spelling of 67406432 in words is "sixty-seven million, four hundred six thousand, four hundred thirty-two".